code: def get_stream():
      if STREAM_POOL:
          return STREAM_POOL.pop()
      else:
          return drv.Stream()
  
file_path: pycuda/pycuda/sparse/inner.py
imports: from __future__ import division
  from __future__ import absolute_import
  import pycuda.driver
  import pycuda.gpuarray
  import atexit
label_desc: Use image node_id 1 for calling a global function with example usage: get_stream() and returns: STREAM_POOL, drv